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Miller" , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Jonathan Corbet , Rob Herring , linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, kernel@pengutronix.de Subject: Re: [PATCH 01/42] crypto: sun4i-ss - Convert to platform remove callback returning void Message-ID: References: <20231020075521.2121571-44-u.kleine-koenig@pengutronix.de> <20231020075521.2121571-45-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20231020075521.2121571-45-u.kleine-koenig@pengutronix.de> Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Le Fri, Oct 20, 2023 at 09:55:23AM +0200, Uwe Kleine-König a écrit : > The .remove() callback for a platform driver returns an int which makes > many driver authors wrongly assume it's possible to do error handling by > returning an error code. However the value returned is ignored (apart > from emitting a warning) and this typically results in resource leaks. > > To improve here there is a quest to make the remove callback return > void. In the first step of this quest all drivers are converted to > .remove_new(), which already returns void. Eventually after all drivers > are converted, .remove_new() will be renamed to .remove(). > > Trivially convert this driver from always returning zero in the remove > callback to the void returning variant. > > Signed-off-by: Uwe Kleine-König > --- > drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-) > > diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c > index 3bcfcfc37084..ba80878e2df5 100644 > --- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c > +++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c > @@ -509,7 +509,7 @@ static int sun4i_ss_probe(struct platform_device *pdev) > return err; > } > > -static int sun4i_ss_remove(struct platform_device *pdev) > +static void sun4i_ss_remove(struct platform_device *pdev) > { > int i; > struct sun4i_ss_ctx *ss = platform_get_drvdata(pdev); > @@ -529,7 +529,6 @@ static int sun4i_ss_remove(struct platform_device *pdev) > } > > sun4i_ss_pm_exit(ss); > - return 0; > } > > static const struct of_device_id a20ss_crypto_of_match_table[] = { > @@ -545,7 +544,7 @@ MODULE_DEVICE_TABLE(of, a20ss_crypto_of_match_table); > > static struct platform_driver sun4i_ss_driver = { > .probe = sun4i_ss_probe, > - .remove = sun4i_ss_remove, > + .remove_new = sun4i_ss_remove, > .driver = { > .name = "sun4i-ss", > .pm = &sun4i_ss_pm_ops, > -- > 2.42.0 > Acked-by: Corentin Labbe Thanks